Cooling zone for a kiln, more specially a roller kiln
The cooling zone for a kiln, more specially a roller kiln, made up of a preheating zone (21), a firing zone and a cooling zone, through which the goods to be kilned, more specially ceramic tiles or plates are transported without any burning tools of refractory material supporting them, is (for the purpose of stopping any effect on the kilned goods in the cooling zone and in the parts next to the cooling zone, because of the effect of the atmosphere in the cooling and any reoxidation of the kilned goods because of this, and for giving a simple way of producing effect on the outer face of the kilned goods using a moving heat vehicle, more specially liquid heat vehicle) is indirectly cooled, and has inlet systems, able to undergo adjustment in their direction and their rate of inlet, for materials for producing an effect on the outer face of the kilned goods. The indirect cooling is more specially produced by having tube coils or tube banks for the heat vehicle in the cooling zone over the kilned goods. The outer faces of such tubes taking up radiant heat are controlledly screened off, on the kilned goods and are placed so as to be normal to the direction of motion of the kilned goods. The screening system may be made up of slotted plates able to be moved in relation to each other, or slotted plates able to be changed in position in relation to each other. The tube coils or banks of tubes for the heat medium may be joined up with plants, or parts of the kiln, for recovery of the heat.
- Assignee:
- EDB-84-177759
- Patent Number(s):
- US 4462797
- OSTI ID:
- 6505412
- Country of Publication:
- United States
- Language:
- English
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